I remember as a kid, my dad bought me one of those 500 piece puzzles (first box), and my mama tried showing me how to play puzzles.. I instantly got it. In fact, I got really frustrated with her when she tried to show me how to piece them together.. It was like, mom, I get it..
How I used to go about it? Dump them all on the table. Flip the pieces over- right side up. Don't even look at the picture.
Piece them together- randomly. If I happen to find 'groups' that go together, I piece them in large chunks- move on- and visually could tell which goes where/how/why.. If I needed a bit more help- a glance over at the picture was enough for me. Haven't played with puzzles in a while.